What is the value of x?
sin(x+34)°=cos(2x+20)°
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Since the sine and cosine are co-functions, the sum of these two angles will = 90°
So we have
[x + 34 ] + [ 2x + 20] = 90 simplify
3x + 54 = 90 subtract 54 from both sides
3x = 36 divide both sides by 3
x = 12
+83 
